Display screen having a graphical user interface or portion thereof



A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever.

The FIGURE is a top plan view of a display screen having a graphical user interface or portion thereof.

The broken lines representing features of the display screen having a graphical user interface or portion thereof including the display screen itself form no part of the claimed design. 

CLAIM The ornamental design for a display screen having a graphical user interface or portion thereof, as shown and described. 